Historical Volatility (Parkinson) (10-Day)
Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.
FT Vest U.S. Equity Max Buffer ETF February (FEBM) had 10-Day Historical Volatility (Parkinson) of 0.0123 for 2026-01-20.
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